设实数x,y满足x^2+(y-1)^2=1,若对满足条件的x,y,x+y
设实数X,Y满足X的平方+(Y-1)的平方=1,若对满足条件的X,Y,不等式X+Y+C大于等于0恒成立,则实数C的取值范
设实数X,Y满足X^2+Y^2=1,则3X+4Y的最大值为多少
设实数X,Y满足条件X大于等于0,X小于等于Y,X+2Y-4小于等于,则Z=X+Y的最大值是
若对满足条件x+y+3=xy(x>0,y>0)的任意x,y,(x+y)2-a(x+y)+1≥0恒成立,则实数a的取值范围
已知实数x,y满足条件{2x-y+1≥0,2x+y≥0,x≤1,求z=x+3y的最小值.
设实数x,y满足条件x≥0x≤yx+2y≤3
设实数X,Y满足约束条件{X+2Y等于-1;Y>等于0,则
已知实数x,y满足(x+y)^2=1,(x-y)^2=25,求x,y的值
若实数x、y满足条件x²-y²=1,则(1/x²)+(2y/x)的取值范围是?
已知实数x,y满足条件x≥0,y≥x,3x+4y≤12,则(x+2y+3)/(x +1)的最大值是
若实数x,y满足{2x-y>=0,
若实数x,y满足2x*X+3y*y=1,S=3x*x-2y*y,则S的取值范围为